chr17-39475671-G-T

Variant names:

• chr17-39475671-G-T
• rs11078903
• NM_016507.4:c.1931+3908G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_016507.4(CDK12):​c.1931+3908G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 26)
• Consequence: CDK12 NM_016507.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.74
• Publications: 22 publications found

Genes affected

CDK12 (HGNC:24224): (cyclin dependent kinase 12) Enables RNA polymerase II CTD heptapeptide repeat kinase activity and cyclin binding activity. Involved in phosphorylation of RNA polymerase II C-terminal domain; protein autophosphorylation; and regulation of MAP kinase activity. Located in nuclear speck. Part of cyclin K-CDK12 complex. [provided by Alliance of Genome Resources, Apr 2022]

CDK12 Gene-Disease associations (from GenCC):

• Tourette syndrome

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.06).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016507.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDK12	NM_016507.4	MANE Select	c.1931+3908G>T		intron	N/A	NP_057591.2
	CDK12	NM_015083.4		c.1931+3908G>T		intron	N/A	NP_055898.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDK12	ENST00000447079.6	TSL:1 MANE Select	c.1931+3908G>T		intron	N/A	ENSP00000398880.4
	CDK12	ENST00000430627.6	TSL:1	c.1931+3908G>T		intron	N/A	ENSP00000407720.2
	CDK12	ENST00000584632.5	TSL:5	c.1928+3908G>T		intron	N/A	ENSP00000464641.1

Frequencies

GnomAD3 genomes Cov.: 26

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 26

Alfa AF: 0.00 Hom.: 4428

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.1
CADD	Benign	0.19
DANN	Benign	0.42
PhyloP100		-1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs11078903; hg19: chr17-37631924;